In 'Chrono Chums: Who's There?', players take on the role of an eccentric time-traveling librarian named Albie who has the peculiar ability to communicate with historical figures through their writings. Albie's peaceful existence is disrupted when a villainous time bandit starts tampering with historical events, causing figures from the past to scramble for help. Players navigate an intricate tapestry of time, piecing together clues through letter exchanges, diary entries, and various media from different eras. Each decision influences the narrative, leading to comedic and dramatic twists that reshape history in unexpected ways. Will Albie manage to restore order before the timeline collapses completely?